Which of the following best describes regolith?
a. the layer of rock and mineral fragments that covers nearly all of earth's land surface
b. a large pile of rock fragments at the base of a steep cliff
c. a mixture of mineral matter, organic matter, water and air
d. a soil that contains large amounts of iron oxide and aluminum rich clays

What must happen before a body cell can begin mitotic cell division

Vi limitens. vastery test select the correct answer. which statement explains why large atoms are more reactive than small atoms? a. large atoms have valence electrons farther from the nucleus and lose them more readily. b. large atoms have greater ionization energy, which they can utilize during a reaction. c. large atoms have a greater number of electrons that they can lose during a reaction. d. large atoms have more energy levels, so they have more energy to pass on in a reaction. reset next

The chemical formula for emerald is be3al2(sio3)6.an emerald can be decided as